Improvement in hangers and boxes for shafting



D. E. HOLT Hangers and Boxes for Shafting.

Patented March 3. 1874,

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CHARLES E. HOLT, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN HANGERS AND BOXES FOR SHAFTING.

Specification forming part of Letters Patent No. 148,063, dated March 3, 1874; application filed February 6, 1874.

To all whom it may concern:

Be it known that I, CHARLES E. HOLT, of Boston, in the county of Suffolk, State of Massachusetts, have invented a certain new and useful Improvement in Hangers and Boxes for Shafting, of which the following is a description suficiently full, clear, and exact to enable any person skilled in the art or science to which my invention appertains to make and use the same, reference being had to the accompanying drawing, forming a part of this specification, in which- Figure 1 is a perspective view of my improved hanger and box. Fig. 2 is a vertical sectional view, showing the connection or joint between the box-crane and hanger. Fig, 3 is a detail to be referred to.

Like letters refer to like parts in the different figures of the drawing.

My invention relates to that class of hangers in which the boxes are adjustable; and consists of a novel construction and arrangement of the parts, as hereinafter more fully set forth and claimed, by which a stronger, lighter, and more effective adjustable hanger and box are produced than is now in common use.

In Fig. 1, A is the supporting-bar; B B, the side braces or uprights, uniting in the crosshead L, and provided with the lateral brace R, screwed into the thimbles or sockets P P. Supported in the head L is the box-crane D. The box G G rests on a pivotal support, J, and is rendered vertically adjustable in the crane or swivel D by the screw H and nuts N, S, T, V. A slot, M, better seen in Fig. 3, allows the box to be adjusted laterally, as required. Projecting from the crane D, and on a plane with the cap of the box G, there are two studs, F F. The lower half of the box G is slotted to admit the crane, and is provided with upwardly-projecting flanges a behind the studs F, by means of which the box is prevented from being thrown out of the hanger by the catching of a belt or otherwise. The crane D is provided with a stud, k, which passes through the cross-head L, and is threaded at its upper end to receive the nut O, which is kept in any desired position on the stud by means of the screw E, by which nut the crane is also rendered vertically adjustable. I construct the framework of the hanger B B, R, P P of gas-pipe or round wrought-iron rods, braced and arranged as shown, by which I obtain a lighter, stronger, and cheaper hanger than any of which I have knowledge. The brace R has its ends threaded with right-anddeft hand screws, the thimbles P P being correspondingly threaded and arranged to slide on the uprights B B.

By this means I am enabled to place the brace in any desired position on the uprights,

according to the length of the same, and the nature of the strain to be brought to bear upon them.

I am aware that shafting-boxes have been constructed to be adjustable, both vertically and laterally, and that hangers have been made in which the box is supported in an adjustable support, and I therefore do not claim the same broadly; but

' What I claim is 1. The hanger described, consisting of the cross-head L and uprights B B, provided with the sliding tliiinbles P P and vertically-adjustable brace B, substantially as and for the purpose specified.

2. The crane D, provided with the studs F F, and rendered vertically and laterally adjustable in the cross-head L by the stud K and nut G, substantially as and for the purpose specified. a

CHARLES E. HOLT. Witnesses:

(J. A. SHAW,

H. E. METCALF. 

